The situation in Cuba, where rebellion declaring independence from
the Spanish colonial rulers in 1868 has left the country in a state
of warfare ever since, causes deterioration in US-Spanish
relations.
Citation:
Editors. "Rebellion in Cuba leads to deterioration of US-Spanish relations".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18694, accessed 18 May 2013.]